Car roof construction



March L5, 1932. A. M GARY 1,849,104

' CAR ROOF CONSTRUCTION Filed Aug. 1a. 1927 2 Sheets-Sheet 1 I f /f A IN V EN TOR. M fia fi/ BY M ATTORNEYS.

Mar-61 1 15, 1 932. I A. MCGARY 1,849,104

CAR ROOF CONSTRUCTION File d Aug. 18. 192 2 Sheets-Sheet 2 M 24 W W i? ATTORNEYS.

Patented Mer. 15, 21.932 7 menu. or new it, i

\ 1 one noon con-summon Appli tion filed Augus is. 1981- .senn io sittin- This invention relates to a novel and improved construction of ireight our, and more particularly to the constructionof the roof of such a car.

The invention finds particular usefulness in the roof of a car, and will'be described and claimed in connection therewith, although it is to :be understood that itmay use:

in equivalent situations.

In shipping certain goods, trouble hasfbeen experienced becauseof .thetaet that the goods when loaded into the car, are still warm from their manufacture, .andas theyeoolofi, sweeting of the car is ca-used particnlarlyv onthe.

inside of thereof where the moisture collects and drips on the goods. The goods with which most di-ificulty has been experienced, comprise various iood products such-as flour,

which are greatly damaged by the moisture go dripping thereon.

The 01 aimsagainst railroads caused by such damage, amount to large-sums of money, and

it is to .avoid suchdamage,that.I have-devised the invent-ion vforming the subject matter of this application.

In the accompanying drawings, in which I have shown aselected embodiment of my in vention Fig. 1 is aplan view of a portion of the so roof of a'freight car;

Fig. 2 is a section on the line 2-.2 of Fig. 1; Fig. 3 is a section on the line 3-3 of Fig. 1, with the runningboard removed;

Fig. 4 is a section onthe lineA- of Fig. 1-; and

Fig. 5 is a fragmentary section ofthe roof showing a modified form which my inven'- tion may take Referring now :to the drawings in detail, I have shown therein a freight car roof 1, formed in a plurality of panels separated by the seam caps 2, which also act as struts to support the brackets ,3. upon which aresecured the running board 4 in the usual-manner. The panels'are usually *formed of sheets of steel or other metal, the edges of thesheets being bent vupwardly within the seam cap. According to my invention, I form each panel of twosuperposed sheets 5 and 6, these 50 sheets being formed of steel or other shitin Fig. 2, these .angle s'beingjedrried"by the:

the roof of .11 car. "How able metal, and disposed between the e sheets I provide aheet insulating me fied by a sheet '7 Qt ape 6 are bent upwardly it e in Fig. .3, and mayb cap 2 in the usual man 1'. inv 1?e' vthat the paper or the. like is guerded from noisture,,a nd that .the's: tie. between they-sheets 5' a,nd .6 is ke t air-t1 ht, I -seal .the edg of the sheets as app Zing hereto a snitgble cement 8, sis-indicated iniBig. :3, .or by seam welding the sheets 15 iand'fi, I

The side edges of the "panel ssage to. the usual side plate englei9 afs indicated standard 22 barside plate '10. The' edges'of. the heets 1:21.1 6 preferably bent downwardly and sealed iasfbyksea-mwelding," asind'icated at 11,in"Fig.;'2r I 5 v 1 "Each end panel of the; ear roof is riveted f to theend plate *i-angle 12,1which in turn is carried by "the our end 13; The 1sheets ,are bent over thie -angl rs, and are'isealed as by seam welding at 114;. g i

The paer whichI preferably employ as heat insu' sting material'maybe name; ind icated in Figs. 1 to 4 inclusive, or it may be of the corrugated type shown at 1.5,, in Fig; 5. Thecorrugated .formf'provides air spaces between the metallic-sheets; thus forming ad.- ditional insulating mean I have shown and :des as being-applied to a' freigedi is m e i car root, because ect ion z ei otiim ndf 1cu1ar'1oeetion, in the claims delete i y ticu'larly 'vexetious' one" to limit myself-tot and I employthe term for simplicity ofixpre'ssi V part of a car to invention may be found to beepplicable."

I claim:- y

1. A car roofpaHQlif meanest bias of metal, one superpgoseid on :eno proximity to each other 'hea terial disposed between isfaif contact therewith; the edge forming the ed es @Qfthe pan together throng out-the ass it edges to permanently seal the heat insulating material between sald sheets.

2. A oar roof formed in panels, each panel colnprismg sheets of metal, one superposed 5 on another and in close proximity to each 19 out the lengths of the panel edges'to' per:

other, heat insulating material disposed between saicl sheets aniin eontact therewith,

the edges-of the sheets forrnlng the edges of each panel being welded together throughmanently seal the heat insulatingngaterial at each panel between the sheets thereof, and

means securing together the sealed edges. of

adjacent panels to forrna jomt.

ALEXANDER" MoG-ARY. 

